The 56-year-old actor made a surprise appearance in the third series of the South Korean series as an unnamed American recruiter and she admitted she would love to take the role further.
Asked if she is interested in an English-language Squid Game sequel or spin-off, she told Variety: "I am wildly open to anything.
"And in a world that is so beautifully, magically created like that, for sure. They're amazing world-builders, and that series has been eaten alive. I don't think there's a corner of the globe that it hasn't touched in some way."
Despite rumours that Blanchett's The Curious Case of Benjamin Button director David Fincher has pitched an English-language take on the series, the Oscar-winning star insisted she doesn't know anything.
"I mean, I'd love to work with David again. It's been ages. But no, I don't know anything more than you do. I'm not being coy. I really don't," she said.
The Australian star's offer to appear on Squid Game came "out of the blue" and was shrouded in so much secrecy, she didn't even have a costume fitting and was instead asked to bring a suit of her own.
She recalled: "Because it's such a cult series and they were shooting in LA of all places, everyone was on a need-to-know basis.
"I got a couple of storyboards. I had to (learn to) play the game very quickly. I had to practise and practise.Â
"I knew there were four or five set-ups that they were going to do, and I knew what they needed from every shot, and then I was given the sides. But it was one of the more mysterious jobs."
The Disclaimer actor is "absolutely" looking forward to doing more TV and is "particularly keen" to join a series that is "fully formed" already.